3 # Copyright (c) 2005 Junio C Hamano
5 # Resolve two or more trees.
16 # The first parameters up to -- are merge bases; the rest are heads.
17 bases= head= remotes= sep_seen=
20 case ",$sep_seen,$head,$arg," in
28 remotes="$remotes$arg "
36 # Reject if this is not an Octopus -- resolve should be used instead.
44 # MRC is the current "merge reference commit"
45 # MRT is the current "merge result tree"
47 if ! git diff-index --quiet --cached HEAD --
49 echo "Error: Your local changes to the following files would be overwritten by merge"
50 git diff-index --cached --name-only HEAD -- | sed -e 's/^/ /'
53 MRC=$(git rev-parse --verify -q $head)
59 case "$OCTOPUS_FAILURE" in
61 # We allow only last one to have a hand-resolvable
62 # conflicts. Last round failed and we still had
64 echo "Automated merge did not work."
65 echo "Should not be doing an Octopus."
69 eval pretty_name=\${GITHEAD_$SHA1:-$SHA1}
70 if test "$SHA1" = "$pretty_name"
72 SHA1_UP="$(echo "$SHA1" | tr a-z A-Z)"
73 eval pretty_name=\${GITHEAD_$SHA1_UP:-$pretty_name}
75 common=$(git merge-base --all $SHA1 $MRC) ||
76 die "Unable to find common commit with $pretty_name"
78 case "$LF$common$LF" in
80 echo "Already up-to-date with $pretty_name"
85 if test "$common,$NON_FF_MERGE" = "$MRC,0"
87 # The first head being merged was a fast-forward.
88 # Advance MRC to the head being merged, and use that
89 # tree as the intermediate result of the merge.
90 # We still need to count this as part of the parent set.
92 echo "Fast-forwarding to: $pretty_name"
93 git read-tree -u -m $head $SHA1 || exit
94 MRC=$SHA1 MRT=$(git write-tree)
100 echo "Trying simple merge with $pretty_name"
101 git read-tree -u -m --aggressive $common $MRT $SHA1 || exit 2
102 next=$(git write-tree 2>/dev/null)
105 echo "Simple merge did not work, trying automatic merge."
106 git-merge-index -o git-merge-one-file -a ||
108 next=$(git write-tree 2>/dev/null)
115 exit "$OCTOPUS_FAILURE"